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CBSE Class 9 Answered

Please help me in the follwoing question.
Asked by | 07 Mar, 2013, 11:18: AM
Expert Answer
as 40% energy of the object reduces so it retains 60% energy and jumps up.
60/100  xmgh1=mgh2
so h2=6/10 x10=6m
Answered by | 07 Mar, 2013, 11:23: AM

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